CN206208839U - One kind test porous material sound insulation property standing wave tube - Google Patents
One kind test porous material sound insulation property standing wave tube Download PDFInfo
- Publication number
- CN206208839U CN206208839U CN201621287855.8U CN201621287855U CN206208839U CN 206208839 U CN206208839 U CN 206208839U CN 201621287855 U CN201621287855 U CN 201621287855U CN 206208839 U CN206208839 U CN 206208839U
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- standing wave
- wave tube
- porous material
- platform
- sample
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Abstract
The utility model discloses one kind test porous material sound insulation property standing wave tube, including the first standing wave tube, the second standing wave tube and put sampling device, the sampling device of putting puts sample platform, second puts sample platform and connector including first, described first puts sample platform and second puts sample platform and is and T-shaped put sample platform, described first puts sample platform includes the first horizontal platform for being used to connect the first vertical duct of the first standing wave tube and be connected with the first vertical duct, and described second puts sample platform includes the second horizontal platform for being used to connect the second vertical duct of the second standing wave tube and be connected with the second vertical duct.It is the utility model simple structure, reasonable in design, thickness to surveyed porous material sample is not required, size finishing is carried out without the appearance and size to porous material sample, the test scope of acoustical material test system is widened, and any destruction will not be produced in test process to porous material sample, it is practical using easy to operate, using effect is good, is easy to promote the use of.
Description
Technical field
The utility model belongs to material acoustics technical field of measurement and test, and in particular to one kind test porous material sound insulation property is used
Standing wave tube.
Background technology
The method of testing of sound insulating material has a lot, it is possible to use sound level meter is directly tested at the scene, and test uses sound insulation material
Noise decibel number before and after material, measured value subtracts each other the oise insulation factor for obtaining sound insulating material, and this test value can only characterize material and exist
Effective noise reduction during use；Material therefor can also be positioned in the dependence test instrument such as acoustical material test system
The measurement of oise insulation factor is carried out, in acoustical material test system, the sound pressure level on material two sides is measured using standing wave tube, so
Afterwards by being calculated the oise insulation factor of the material, the relatively straightforward sound insulation property for illustrating the material of result that this method is measured
Can, but in standing wave tube measurement process, requiring that the thickness of selected materials is unsuitable excessively thin first, the thickness of material can not be less than
5mm, excessively thin material cannot be stood in standing wave tube；Secondly material of measuring and monitoring the growth of standing timber does not allow to be more fluffy state, this material
Thickness cannot be set in body；The dimensioned by measured and monitored the growth of standing timber material is finally needed to specified size, will test material processing
Cylindrical sample and tolerance into a diameter of 29mm or 100mm want≤- 0.2mm, and no person will have a strong impact on test result, and survey
Material after the completion of examination cannot be further continued for for other purposes.Therefore need a kind of test suitable for various thickness and profile many
Porous materials sound insulation property standing wave tube, without carrying out size finishing to porous material sample, and porous material sample pass through every
After acoustic performance test, can also continue to for other purposes.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, there is provided one kind test
Porous material sound insulation property standing wave tube, its simple structure, reasonable in design, the thickness to surveyed porous material sample will
Ask, size finishing is carried out without the appearance and size to porous material sample, widened the test model of acoustical material test system
Enclose, and any destruction, practical using easy to operate, using effect will not be produced to porous material sample in test process
It is good, it is easy to promote the use of.
In order to solve the above technical problems, the technical solution adopted in the utility model is：One kind test porous material sound insulation property
Energy standing wave tube, it is characterised in that：Including the first standing wave tube, the second standing wave tube and it is arranged on the first standing wave tube and the second standing wave tube
Between and the sampling device of putting for placing porous material sample, it is described put sampling device including first put sample platform, second put sample platform with
And it is multiple put sample platform and second for connecting first and put the connector of sample platform, described first puts sample platform and second puts sample platform and is T
Type puts sample platform, and described first puts sample platform includes the first vertical duct for connecting the first standing wave tube and connected with the first vertical duct
First horizontal platform, described second puts sample platform includes connecting for the second vertical duct of the second standing wave tube of connection and with the second vertical duct
The second logical horizontal platform, is provided with multiple companies passed through for connector on first horizontal platform and the second horizontal platform
Fitting through hole.
A kind of above-mentioned test porous material sound insulation property standing wave tube, it is characterised in that：First standing wave tube and
One vertical duct is threadedly coupled, and second standing wave tube and the second vertical duct are threadedly coupled.
A kind of above-mentioned test porous material sound insulation property standing wave tube, it is characterised in that：The connector is bolt.
The utility model has advantages below compared with prior art：
1st, simple structure of the present utility model, reasonable in design, realizes and using easy to operate.
2nd, in test process, the thickness to surveyed porous material sample is not required the utility model, porous material examination
Only the intercommunicating pore of the first vertical duct and the first horizontal platform need to be completely covered for sample, without the profile to porous material sample
Size carries out size finishing, has widened the test scope of acoustical material test system, has saved being processed into test process
This.
3rd, the utility model plays a part of fixed porous material sample using article-holding device and connector, without reordering outward
Position device, in test process, will not produce any destruction to porous material sample, and after the completion of test, porous material sample can
Continue on for other purposes.
In sum, the utility model simple structure, reasonable in design, the thickness to surveyed porous material sample will
Ask, size finishing is carried out without the appearance and size to porous material sample, widened the test model of acoustical material test system
Enclose, and any destruction, practical using easy to operate, using effect will not be produced to porous material sample in test process
It is good, it is easy to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation that the utility model first puts sample platform.
Fig. 3 is the structural representation that the utility model second puts sample platform.
Description of reference numerals:
1-the first standing wave tube；2-the second standing wave tube；3-the first puts sample platform；
3-1-the first vertical duct；3-2-the first horizontal platform；4-the second puts sample platform；
4-1-the second vertical duct；4-2-the second horizontal platform；5-connector；
6-connector through hole；7-porous material sample.
Specific embodiment
As shown in Figure 1, Figure 2 and Figure 3, the utility model includes the first standing wave tube 1, the second standing wave tube 2 and is arranged on first
Sampling device of putting between the standing wave tube 2 of standing wave tube 1 and second and for placing porous material sample 7, the sampling device of putting includes the
One put sample platform 3, second put sample platform 4 and it is multiple put sample platform 3 and second for connecting first and put the connector 5 of sample platform 4, described the
One put sample platform 3 and second put sample platform 4 be it is T-shaped put sample platform, described first puts sample platform 3 is included for connecting the first standing wave tube 1
First vertical duct 3-1 and the first horizontal platform 3-2 connected with the first vertical duct 3-1, described second puts sample platform 4 is included for connecting
The the second horizontal platform 4-2 for meeting the second vertical duct 4-1 of the second standing wave tube 2 and being connected with the second vertical duct 4-1, described first is horizontal
To being provided with multiple connector through holes 6 passed through for connectors 5 on platform 3-2 and the second horizontal platform 4-2.
As shown in figure 1, in the present embodiment, the vertical duct 3-1 of first standing wave tube 1 and first threaded connections, described second
The vertical duct 4-1 of standing wave tube 2 and second is threadedly coupled.
As shown in figure 1, in the present embodiment, the connector 5 is bolt.
During specific implementation, internal thread is provided with the first standing wave tube 1, is provided with the first vertical duct 3-1 and the first standing wave
The external screw thread of screw-internal thread fit on pipe 1, is provided with external screw thread on the second standing wave tube 2, be provided with and second on the second vertical duct 4-1
The internal thread that external screw thread coordinates on standing wave tube 2, bottom is threaded to by the first vertical duct 3-1 and the first standing wave tube 1 using internal and external threads,
Second vertical duct 4-1 and the second standing wave tube 2 are threaded to bottom using internal and external threads, the first standing wave tube 1, the first vertical duct 3-1 and
The connecting hole of the first horizontal platform 3-2 insertions is instrument connection.Prepare porous material sample 7, the appearance and size of porous material sample 7
Thickness do not limit, the size of porous material sample 7 only needs to meet at 2 points：1, the through hole of the first horizontal platform 3-2 is covered completely
Lid；2, connector through hole 6 is not covered.Size finishing is carried out without the appearance and size to porous material sample 7, acoustics has been widened
The test scope of material testing system, has saved the processing cost in test process.Then porous material sample 7 is placed on
One puts sample platform 3 and second puts between sample platform 4, puts sample platform 3 by first using connector 5, second puts sample platform 4 and porous material sample
7 are brought into close contact together, and without additional positioner, in test process, porous material sample 7 will not be produced any
Destruction.Then the test device of porous material sample 7 is will be equipped with acoustical material test system, is tested, make
It is practical with easy to operate, it is easy to promote.
The above, is only embodiment of the present utility model, and not the utility model is imposed any restrictions, every according to this
Any simple modification, change and equivalent structure change that utility model technical spirit is made to above example, still fall within
In the protection domain of technical solutions of the utility model.
Claims (3)
- It is 1. a kind of to test porous material sound insulation property standing wave tube, it is characterised in that：Including the first standing wave tube (1), the second standing wave Pipe (2) and it is arranged between the first standing wave tube (1) and the second standing wave tube (2) and puts sample for place porous material sample (7) Device, the sampling device of putting puts sample platform (3), second puts sample platform (4) and multiple put sample platform (3) for connecting first including first The connector (5) for putting sample platform (4) with second, described first put sample platform (3) and second put sample platform (4) be it is T-shaped put sample platform, it is described First puts sample platform (3) connects including the first vertical duct (3-1) for the first standing wave tube of connection (1) and with the first vertical duct (3-1) Logical the first horizontal platform (3-2), described second puts sample platform (4) includes the second vertical duct for connecting the second standing wave tube (2) (4-1) and the second horizontal platform (4-2) connected with the second vertical duct (4-1), first horizontal platform (3-2) and the second horizontal stroke To being provided with multiple connector through holes (6) passed through for connector (5) on platform (4-2).
- 2. according to a kind of test porous material sound insulation property standing wave tube described in claim 1, it is characterised in that：Described first Standing wave tube (1) and the first vertical duct (3-1) are threadedly coupled, and second standing wave tube (2) and the second vertical duct (4-1) screw thread connect Connect.
- 3. according to a kind of test porous material sound insulation property standing wave tube described in claim 1, it is characterised in that：The connection Part (5) is bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621287855.8U CN206208839U (en) | 2016-11-28 | 2016-11-28 | One kind test porous material sound insulation property standing wave tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621287855.8U CN206208839U (en) | 2016-11-28 | 2016-11-28 | One kind test porous material sound insulation property standing wave tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206208839U true CN206208839U (en) | 2017-05-31 |
Family
ID=58748283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621287855.8U Expired - Fee Related CN206208839U (en) | 2016-11-28 | 2016-11-28 | One kind test porous material sound insulation property standing wave tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206208839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870507A (en) * | 2019-01-25 | 2019-06-11 | 河海大学 | A kind of porous asphalt mixture noise absorbent and communication effect test device and usage |
-
2016
- 2016-11-28 CN CN201621287855.8U patent/CN206208839U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870507A (en) * | 2019-01-25 | 2019-06-11 | 河海大学 | A kind of porous asphalt mixture noise absorbent and communication effect test device and usage |
| CN109870507B (en) * | 2019-01-25 | 2021-09-07 | 河海大学 | Porous asphalt mixture noise absorption and propagation effect testing device and application method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 Termination date: 20211128 |